LaTeX2e Postscript font system

[dany@fub.it (Daniela D'Aloisi)]

Hi!

I'm trying to typeset a file with a class-file (hci_proceedings.cls), but I
got the following problem:

> This is TeX, Version 3.1415 (C version 6.1)
> (sigchi.tex
> LaTeX2e <1994/06/01>
> (/usr/local/tex/lib/texmf/tex/latex2e/base/hci_proceedings.cls
> Document Class: hci_proceedings 1995/11/23 1.0 HCI Proceedings class
> (/usr/local/tex/lib/texmf/tex/latex2e/base/book.cls
> Document Class: book 1994/06/02 v1.2s Standard LaTeX document class
> (/usr/local/tex/lib/texmf/tex/latex2e/base/bk12.clo))
> (/usr/local/tex/lib/texmf/tex/latex2e/base/ifthen.sty)
> (/usr/local/tex/lib/texmf/tex/latex2e/base/times.sty
> (/usr/local/tex/lib/texmf/tex/latex209/dvips/psfonts.sty))) (sigchi.aux
| )
> ! Missing number, treated as zero.
> <to be read again> 
>                    p
> l.7 \begin{document}
>                     
> ? 

A guy told me that "You are tryng to use the LaTeX209
PostScript font system when you need the LaTeX2e PostScript font
system." 
Could someone tell me if I need to re-install the whole LaTeX or there is
something I can add to get the whole thing working?

Thanks in advance


Daniela

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